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Sleek and sophisticated, KARSINO10 BA is lightweight, but don’t let that fool you. This blade is tough and practical while being a smooth operator.  Pronounced like “carcinogen”, except replace the “gen” with “ten”, this 3.5-inch blade is a perfect addition to any EDC collection. 

These are a limited run.  After that, it’s anyone’s’ guess if more will be made.  Make sure to snag up KARSINO10 BA! 


Factory 2nd blades are just as functionally fit and come with the same KRUDO Knives warranty that you know & trust, but have some cosmetic difference(s).

Possible reasons a knife is considered a Factory 2nd would be smudge, scratch, color variance, chatter mark, some cosmetic inconsistency. 

You get a fully functional KRUDO Knife at a fraction of the cost. There will, however, be some unique, cosmetic difference that makes this item a 2nd.

No coupons or added discounts will apply to any Factory 2nd item.

This product is currently out of stock and unavailable.


You might be wondering what the “BA” stands for. We couldn’t quite decide so that question tends to get answered two ways; Bad Ass or Bad Attitude, you decide which you prefer.

The blue titanium inserts are a nod to the big, blue skies of Arizona, where KRUDO Knives relocated a year ago. Louis Krudo designed this knife with the thought of simple elegance and grace. The elegance and grace that a master of martial arts demonstrates as he goes through his everyday practice; that practiced movement that becomes so ingrained, so second nature.

In his many years of martial arts practice, Louis Krudo incorporates stick and knife flow. His knife designs are an extension of that flow. KARSINO10 BA is just such a knife, made to fit comfortably in the hand and pocket, you’ll want this sexy blade on any ride-along. Use it for everyday tasks like a utility knife or as your special occasion, dress blade this knife can span the gamut. 

The KRUDO Knives Thumb Wedge puts your thumb in stable, ergonomic positioning, but also is great for out of the pocket deployment.  Whether you deploy in reverse grip or tip forward, the thumb wedge makes for a lightning fast opening with no spring assist. 

The pocket clip, made from titanium, is as tough as they come.  The S35VN blade, with its flat grind and accent grind is a hefty 3/16’ thick making KARSINO10 tops in dependability, no wimpy blade here! 

KARSINO10 BA Specifications

  • Blade Steel S35VN   
  • Blade Thickness 0.187
  • Blade Length 3.5” 
  • Overall Length 8”
  • Weight 4.9 oz
  • Frame Lock 
  • Titanium Inserts – Blue Color May Vary From Pictured
  • Ceramic Ball Bearing Washers


Designed in the U.S.A. by Louis Krudo.

All aspects of production of KRUDO Knives designs are overseen by Louis Krudo — relentlessly, meticulously, verging on OCD, mixed with odd hours and lots of hot coffee.

Built in China and hands on, quality controlled in Cave Creek, AZ, USA.

Additional information

Weight .306 lbs
Dimensions 6.3 × 3 × 1.14 in

Factory 2nds, The KRUDO Standard


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